我试图使用Android导航组件从一个片段导航到另一个片段。
当我打电话的时候
itemView.findNavController().navigate(direction)我知道这个错误
java.lang.ClassCastException: MyFragment cannot be cast to androidx.fragment.app.Fragment
at androidx.fragment.app.Fragment.instantiate(Fragment.java:523)
at androidx.fragment.app.FragmentContainer.instantiate(FragmentContainer.java:57)
at androidx.fragment.app.FragmentManagerImpl$6.instantiate(FragmentManagerImpl.java:2851)
at androidx.navigation.fragment.FragmentNavigator.instantiateFragment(FragmentNavigator.java:132)
at androidx.navigation.fragment.FragmentNavigator.navigate(FragmentNavigator.java:162)
at androidx.navigation.fragment.FragmentNavigator.navigate(FragmentNavigator.java:58)
at androidx.navigation.NavController.navigate(NavController.java:859)
at androidx.navigation.NavController.navigate(NavController.java:793)
at androidx.navigation.NavController.navigate(NavController.java:730)
at androidx.navigation.NavController.navigate(NavController.java:716)
at androidx.navigation.NavController.navigate(NavController.java:907)
at MyViewHolder$bind$1.onClick(MyViewHolder.kt:31)
at android.view.View.performClick(View.java:6663)
at android.view.View.performClickInternal(View.java:6635)
at android.view.View.access$3100(View.java:794)
at android.view.View$PerformClick.run(View.java:26199)
at android.os.Handler.handleCallback(Handler.java:907)
at android.os.Handler.dispatchMessage(Handler.java:105)
at android.os.Looper.loop(Looper.java:216)
at android.app.ActivityThread.main(ActivityThread.java:7625)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:524)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:987)我想这是因为MyFragment是DaggerFragment,DaggerFragment是android.support.v4.app.Fragment。
但是,在我的gradle.properties中启用了Jetifier:
android.useAndroidX=true
android.enableJetifier=true这不是应该把我的v4片段转换成雄激素片段吗?
发布于 2019-11-04 09:47:59
DaggerFragment已经不受欢迎了,所以我把它处理掉了。
我把匕首的版本撞到了2.23.2:
// Dagger
implementation "com.google.dagger:dagger:2.23.2"
kapt "com.google.dagger:dagger-compiler:2.23.2"
// Dagger Android
implementation "com.google.dagger:dagger-android:2.23.2"
implementation "com.google.dagger:dagger-android-support:2.23.2"
kapt "com.google.dagger:dagger-android-processor:2.23.2"我的片段现在继承了androidx片段而不是DaggerFragment。为了保持注入工作正常,我使用了AndroidSupportInjection:
class MyFragment : Fragment() {
override fun onAttach(context: Context) {
super.onAttach(context)
AndroidSupportInjection.inject(this)
}
}https://stackoverflow.com/questions/58690454
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